Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume -, Issue -, Pages -Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.2c03099
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Funding
- National Natural Science Foundation of China
- [21878227]
- [21938008]
- [U21B2096]
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This study reports the synthesis of a nanoflower-like Cu/ZnO catalyst via a one-step hydrothermal method for the hydrogenation of methyl acetate. The presence of Cu-ZnO interaction promotes high dispersion of active species and increases the proportion of Cu+. The open nanoflower-like structure ensures a large specific surface area and better accessibility of the active sites for reactant adsorption.
The selective synthesis of ethanol (EtOH) from the hydrogenation of methyl acetate (MA) is an environmentally friendly chemical technology in the modern chemical industry. This work reported a one-step hydrothermal method aimed to tune the Cu-ZnO interaction and the various copper species of Cu/ZnO catalysts for MA hydrogenation. The samples were characterized with various methods, including nitrogen adsorption, scanning electron microscopy (SEM), X-ray diffraction (XRD), temperature -programmed reduction (H2-TPR), and X-ray photoelectron spectroscopy (XPS). In comparison with the Cu/ZnO catalysts prepared using a hydrothermal-ammonia evaporation method and a coprecipitation method, the nanoflower-like Cu/ZnO catalyst prepared via the one-step hydrothermal method achieves superior activity in MA hydrogenation. The presence of Cu-ZnO interaction promotes the high dispersion of active species and produces more Cu-ZnOx structures to increase the proportion of Cu+. The open nanoflower-like structure ensures a large specific surface area and better accessibility of the active sites for the adsorption of reactants.
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